Pantnagar is the nearest airport, Air India operates flights from Delhi 3 to 4 days a week.
The nearest railway station is Kathgodam, Uttarakhand, from KasarDevi its around 90 Km. Haldwani & Kathgodam are adjacent to each other, Haldwani is like the entrance door to Kumaun and Haldwani/Kathgodam are well connected by trains from Delhi (Shatabdi runs daily), Lucknow, Dehradun, Jaipur, Howrah (Kolkata).
Haldwani is well connected by buses from Delhi, Jaipur, Agra, Chandigarh, Lucknow, Dehradun. Bus timings(tentative) are mentioned above and Official website of Govt Of Uttarakhand for buses is https://utconline.uk.gov.in/welcome.aspx
Buses,taxis,shared taxis from Haldwani to Almora are very frequent. From haldwani one can hire a taxi to Kasar Devi; or bus/shared taxi to Almora and take another taxi to Kasar Devi.
One can find all kind of accommodations, from economical hotels to high rated resorts and home stays are also available .
KMVN Kumaon Mandal Vikas Nigam Ltd rest house is also present nearby
Bird watching :Binsar wildlife sanctuary is very nearby and an ideal place for watching exotic ,residential & migratory birds.
Meditation:Due to it's calm,serene and lush green environment its an ideal place for yoga & meditation.Swami Vivekananda meditated here.
Nearby places to visit
Mrig Vihar Zoo / Deer Park: park preserves a number of deer, Himalayan bears and wild leopards.
Katarmal Sun temple:It is a unique cluster of temples (around 44) which are the tallest temples in the Kumaun. It is 10 kms from Kasar Devi & is located at a height of 2116 meters above sea level. It was built somewhere between the 9th – 13th Century by King Katarmalla the then ruler of Kumaun.